SI8232DB-B-ISR Equivalent & Substitute Parts

Part Overview

The SI8232DB-B-ISR is a 2-channel digital isolator gate driver manufactured by Skyworks Solutions Inc., featuring capacitive coupling isolation technology rated at 5000Vrms. This component is designed for automotive-grade applications requiring high-speed gate driving with integrated isolation. The part is currently classified as obsolete, making identification of compatible substitutes essential for ongoing system support and new design implementations.

Substiute Parts

SI8232DB-B-ISR

Skyworks Solutions Inc.In Stock: 860SI8232DB-B-ISR Datasheet

Current PartRFQ

SI8232DB-D-ISR

Skyworks Solutions Inc.In Stock: 771SI8232DB-D-ISR Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SI8232DB-B-ISR is determined by strict alignment across the following critical parameters:

• Isolation Technology: Capacitive coupling architecture
• Channel Configuration: 2-channel gate driver topology
• Common Mode Transient Immunity: Minimum 20kV/µs
• Propagation Delay: Maximum 60ns for both rising and falling edges
• Pulse Width Distortion: Maximum 5.6ns
• Peak Output Current: 500mA capability
• Output Supply Voltage Range: 4.5V to 5.5V
• Package Type: 16-SOIC form factor
• Automotive Grade: AEC-Q100 qualification required
• Operating Temperature Range: -40°C to 125°C

The SI8232DB-D-ISR meets all substitution criteria while offering active product status, providing a direct functional replacement for obsolete SI8232DB-B-ISR applications.

Parameter Comparison

Engineering Selection Recommendations

The SI8232DB-D-ISR is the direct substitute for SI8232DB-B-ISR applications. Both components share identical electrical specifications, thermal operating ranges, and automotive-grade certifications. The primary distinction is product lifecycle status: SI8232DB-B-ISR is obsolete while SI8232DB-D-ISR maintains active production status.

For new designs and ongoing system support, SI8232DB-D-ISR is the appropriate selection. Both parts carry equivalent compliance credentials including AEC-Q100 automotive qualification and multi-agency approvals (CQC, CSA, UR, VDE), ensuring regulatory alignment for automotive applications.

Packaging differences are limited to supplier format: SI8232DB-B-ISR is supplied in standard packaging while SI8232DB-D-ISR is available in Tape & Reel format, which is standard for high-volume manufacturing environments.

Frequently Asked Questions (FAQ)

Q: Can SI8232DB-D-ISR directly replace SI8232DB-B-ISR in existing designs?

A: Yes. Both parts are electrically and mechanically identical across all specified parameters. The 16-SOIC package footprint, pin configuration, and electrical performance are equivalent. Direct PCB substitution is supported without design modification.

Q: What is the significance of the product status difference?

A: SI8232DB-B-ISR is classified as obsolete, indicating discontinued manufacturing and limited availability. SI8232DB-D-ISR is active production, ensuring long-term supply chain reliability and continued manufacturer support.

Q: Are there packaging compatibility considerations?

A: Both parts use the 16-SOIC (0.295", 7.50mm Width) package. SI8232DB-D-ISR is supplied in Tape & Reel format, which is standard for automated assembly. This does not affect electrical or mechanical compatibility.

Q: Do both parts meet automotive qualification requirements?

A: Yes. Both SI8232DB-B-ISR and SI8232DB-D-ISR carry AEC-Q100 automotive qualification and are approved by CQC, CSA, UR, and VDE agencies, meeting automotive-grade reliability and safety standards.

Q: What are the critical electrical parameters for substitution?

A: Substitution is valid when the following parameters match: 2-channel configuration, 5000Vrms isolation (or equivalent), 20kV/µs common mode transient immunity, 60ns maximum propagation delay, 500mA peak output current, and 4.5V to 5.5V output supply voltage range.